<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<link href="css04.css" rel="stylesheet" type="text/css">
</head>
	
	<body>
	<div class="box01">css常用属性：高度、宽度、字体大小、边框、背景色</div>
	<div class="">123456</div>
	<div class="">123456</div>
	<div class="">123456</div>
	<div class="">123456</div>
	<div class="">123456</div>
	<div class="">123456</div>
	<div class="">123456</div>
	<div class="">123456</div>
	<div class="">123456</div>
		
	
	
	</body>

<body>
</body>
</html>
